/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraSystemViewModel.h
const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraSystemGraphSelectionViewModel](API\Plugins\NiagaraEditor\ViewModels\FNiagaraSystemGraphSelectionView-) > & GetSystemGraphSelectionViewModel() const